What powers cdt.cz?
Last seen Aug 2026 · 31 technologies across 19 categories
Advertising
Microsoft Advertising
since Oct 2025
Analytics
Google Analytics
since Aug 2018
CDN
Cloudflare
since Oct 2025
jsDelivr
since Feb 2022
CMS
WordPress
since Oct 2025
Cookie compliance
Transcend
since Nov 2025
Databases
MySQL
since Oct 2025
Ecommerce
Cart Functionality
since Oct 2025
Pattern by Etsy
since Nov 2025
Font scripts
JavaScript Frameworks
JavaScript libraries
Modernizr
since Dec 2018
web-vitals
since Nov 2025
Miscellaneous
Open Graph
since Sep 2022
PWA
since Nov 2025
Performance
Priority Hints
since Nov 2025
Programming languages
RUM
Cloudflare Browser Insights
since Oct 2025
Security
Tag managers
Google Tag Manager
since Aug 2018
UI frameworks
Web frameworks
Web Servers
Nginx
since Feb 2017
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 52% phone
- 48% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.42 / 10 · ranked #414,882 of all domains
77 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 5.6 MB · 27 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- ČD – Telematika
- Founded: 1994
- Sector: telecommunications industry, infrastructure
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on CDT-AS The Czech Republic (82.117.148.155, IPv6)
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed
- Common Crawl link graph: rank 9,886,816, 10 hosts
- Verified with: Atlassian, Google, Microsoft 365
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| iot.cdt.cz | 23 |
| www.cdt.cz | 7 |
| m.cdt.cz | 5 |
| family2.cdt.cz | 2 |
| family.cdt.cz | 1 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Azure Nov 2025
- dropped Blogger Nov 2025
- detected Bootstrap Nov 2025
- detected DataDome Nov 2025
- detected Pattern by Etsy Nov 2025
- detected Priority Hints Nov 2025
- detected PWA Nov 2025
- detected Transcend Nov 2025
- detected web-vitals Nov 2025